From: Alex Chaffee <alex@...>
Date: 2012-01-26T03:42:39+09:00
Subject: Re: Print and puts. What inputs do they require?

> How does print know to output what "gets" receives?
> Also, when replacing print with puts how come it doesn't
> output the numbers any more?

To decipher Ryan's answer, print with no arguments prints $_, which
was just set by gets. And a solo puts *doesn't* print $_; instead it
prints a newline.

I agree with Ryan that ri is your friend, and I wish that RVM
installed ri files by default instead of making you run "rvm docs
generate".

-- 
Alex Chaffee - alex@stinky.com
http://alexchaffee.com
http://twitter.com/alexch